They weld together into new continental crust.
It is not. The oceanic crust is thinner than the continental crust!
Ocean crust is denser
The part of the Earth's crust that is not covered by ocean water is called the continental crust. It is thicker and less dense than the oceanic crust and primarily makes up the continents.
The definition of ocean continental collision means the continental crust and the ocean's crust collide with one another. A subduction is formed when the collision occurs.
The ocean crust dives below the continental crust due to a collision. This collision involves the two types of crust and since the oceanic crust is denser, it sinks to the bottom while the less dense continental crust rises to the top.
Because the oceanic crust is under water in the ocean and a continental crust is land such as the continents
The continental margin is the zone of the ocean floor that separates the thin oceanic crust from thick continental crust.
The crust not under the ocean is called continental crust. It is thicker and less dense compared to oceanic crust and forms the landmasses on Earth's surface.
The boundary between the oceanic crust and continental crust is known as the continental shelf. This is the shallowest part of the ocean that extends from the shore to the continental slope.
continental crust
The portion of the continental margin that serves as a boundary between the oceanic crust and the continental crust is known as the continental slope. This region transitions from the relatively shallow continental shelf to the steeper continental rise, leading down to the deep ocean floor. The slope marks the edge of the continental crust, where it meets the denser oceanic crust beneath the ocean.
The continental margin typically consists of a combination of continental crust that extends from the shoreline to the continental shelf's outer edge, where it transitions into oceanic crust of the ocean basin.